Run Kubernetes Locally

gistfile1.txt

# How to install and run kubernetes locally (Ubuntu)

## 1. Intsall [Kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/)

## 2. Intsall [MiniKube](https://minikube.sigs.k8s.io/docs/start/)

## 3. Add Docker to Sudo group:
```bash
# (required) to be able to start minikube
$ sudo groupadd docker

# Add your user to the docker group, replace [user] with your username
$ sudo usermod -aG docker [user] 

# To activate changes to the group
$ newgrp docker
```
## 4. Build, test and push application to dockerhub:

```bash
# (required) build the docker image from the Dockerfile
$ docker build -t comingsoon-img .
```

```bash
# (Optional) you can test the application locally with docker before pushing it to dockerhub to make sure it is working fine
$ docker run -d -p 8000:80 comingsoon-img
$ curl localhost:8000
```

```bash
# to stop and remove container after testing
$ docker stop comingsoon-img
$ docker rm comingsoon-img
```

```bash 
# (required) make sure you logedin to your dockerhub account before you push the image
$ docker login

# (required) tag the image that you will push with your dockerhub user   
$ docker tag comingsoon-img dockerhub.user/comingsoon-img 

# (required) push image to dockerhub
$ docker push dockerhub.user/comingsoon-img
```
## 5. Add Docker to Sudo Group
```bash
# Create the docker group if not exist
$ sudo groupadd docker

# Add user to the docker group
$ sudo usermod -aG docker [user]

# To activate changes to the group
$ newgrp docker

```

## 6. Start MiniKube:

```bash 
minikube start 
```

## 7. Install K9s

### a) Click on the following link: [Download K9s](https://github.com/derailed/k9s/releases)

### b) Unzip the downloaded tar.gz file
``` bash
# Download K9s 
$ sudo tar -xvzf file.tar.gz
```

### c) Install 
``` bash
# Make sure you are into the directory and see the k9s file 
$ sudo install -m 755 k9s
```

## 8. Deploy the application:

``` bash
# run deployment.yml & service.yml
$ kubectl create namespace <name>
$ kubectl -n <namespace-name> apply -f deployment.yml 
$ kubectl -n <namespace-name> apply -f service.yml 
```

## 9. Get App URL
```bash
minikube service -n <namespace-name> <service-name> --url
```